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Genome-wide gene expression analysis of new cardiomyocytes (CMs) derived from resident c-kitpos endogenous cardiac stem cells (eCSCs) after myocardial injury by Isoproterenol (ISO) in mice.

ABSTRACT: Genome-wide gene expression analysis of new cardiomyocytes (CMs) derived from resident c-kitpos endogenous cardiac stem cells (eCSCs) after myocardial injury by Isoproterenol (ISO) in mice. These data show that of new CMs derived from resident c-kitpos eCSCs have a gene expression profile that closely resembles the specific gene expression of adult cardiomyocytes. This result supports a role of c-kitpos eCSCs in the regeneration and repair of myocardial damage.

ORGANISM(S): Mus musculus

PROVIDER: GSE49318 | GEO | 2013/07/30

SECONDARY ACCESSION(S): PRJNA213626

REPOSITORIES: GEO

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Genome-wide gene expression analysis of new cardiomyocytes (CMs) derived from resident c-kitpos endogenous cardiac stem cells (eCSCs) after myocardial injury by Isoproterenol (ISO) in mice.

Project description:Genome-wide gene expression analysis of new cardiomyocytes (CMs) derived from resident c-kitpos endogenous cardiac stem cells (eCSCs) after myocardial injury by Isoproterenol (ISO) in mice. These data show that of new CMs derived from resident c-kitpos eCSCs have a gene expression profile that closely resembles the specific gene expression of adult cardiomyocytes. This result supports a role of c-kitpos eCSCs in the regeneration and repair of myocardial damage. To test the identity and the degree of differentiation of new cardiomyocytes (CMs) derived from resident c-kitpos endogenous cardiac stem cells (eCSCs) after myocardial injury by Isoproterenol (ISO) in mice. Global gene expression profiles by microarray was obtained in c-kitpos eCSCs, c-kitpos eCSC-derived YFPpos CMs and normal adult CMs. c-kitposCD45neg eCSCs were isolated from B6.129X1-Gt(ROSA)26Sortm1(EYFP)Cos/J mice and harvested at 4th passage (n=3). YFPpos cardiomyocytes were FACS sorted from left ventricle apex of Lentirius-c-kit/cre recombined B6.129X1-Gt(ROSA)26Sortm1(EYFP)Cos/J mice 28 days after ISO (N=3). Normal adult CMs were isolated from B6.129X1-Gt(ROSA)26Sortm1(EYFP)Cos/J mice (n=3).

2013-07-30 | E-GEOD-49318 | biostudies-arrayexpress

Isoproterenol-induced cardiac hypertrophy trigger proteome remodeling of mouse cardiomyocytes

Project description:Cardiac hypertrophy consists in the enlargement of cardiomyocytes and alteration of the extracellular matrix organization in response to physiological or pathological stress. In pathological hypertrophy ocuurs myocardial damage, loss of cardiomyocytes, fibrosis, inflammation, sarcomere disorganization and metabolic impairment, leading to cardiac dysfunction.The rodent model treated with isoproterenol induces cardiac hypertrophy due the constant activation of β-adrenergic receptors. We conducted a quantitative label-free proteomic analysis of cardiomyocytes isolated from hearts of mice treated or not with isoproterenol to better understand the molecular bases of cellular response due to isoproterenol-induced injury.

2020-05-27 | PXD013020 | Pride

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miRNA expression profiles in endometriotic cyst stromal cells (ECSCs).

Project description:To identify the miRNAs which play a role in the development of endometriosis, we explored differentially expressed miRNAs between ECSCs (N=8) and normal endometrial stromal cells (NESCs, n=8) using miRNA microarray. The expression profiles in ECSCs and NESCs were obtained, then the miRNAs were filtered by signal intensity (20.0<, at least one out of 16 samples have values within range) and flags (at least 70% of cases have good flags). The differentially expressed miRNAs in ECSCs compared with NESCs were identified using volcano plot (Fold change >= 2.0, Mann-Whiteny U test p<0.05). The primary culture of ECSCs and NESCs (controls) were utilized. Total RNA was extracted from them, and miRNA microarray analysis was performed. The miRNAs differentially expressed between ECSCs and NESCs were identified, and aberrantly expressed miRNAs in ECSCs were defined as the endometriosis related miRNAs.

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Neonatal rat ventricular cardiomyocytes Cells: Control vs. hypertrophic cardiomyocytes induced by isoproterenol

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miRNA expression profiles in decidualized and non-decidualized endometriotic cyst stromal cells (ECSCs).

Project description:To identify the miRNAs which regulate the decidualization of ECSCs, we explored differentially expressed miRNAs between untreated ECSCs (n=4) and decidualized ECSCs (n=4) using miRNA microarray. The miRNA expression profiles in untreated ECSCs and decidualized ECSCs were obtained, then the miRNAs were filtered by signal intensity (50.0<, at least one out of 8 samples have values within range) and flags (at least 17% of cases have good flags). We established the criteria for regulated genes: ratio ≥2.0-fold for up-regulated genes and ratio ≤0.5 for down-regulated genes.

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mRNA expression profiles in decidualized and non-decidualized endometriotic cyst stromal cells (ECSCs).

Project description:To identify the mRNAs which regulate the decidualization of ECSCs, we explored differentially expressed mRNAs between untreated ECSCs (n=4) and decidualized ECSCs (n=4) using gene expression microarray. The mRNA expression profiles in untreated ECSCs and decidualized ECSCs were obtained, then the mRNAs were filtered by signal intensity (50.0<, at least one out of 8 samples have values within range) and flags (at least 58% of cases have good flags). We established the criteria for regulated genes: Z-score ≥2.0 and ratio ≥2.0-fold for up-regulated genes, and Z-score ≤–2.0 and ratio ≤0.5 for down-regulated genes.

2016-10-12 | GSE75423 | GEO

miRNA expression profiles in endometriotic cyst stromal cells (ECSCs).

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Set7 deletion attenuates isoproterenol-induced cardiac fibrosis and prevents heart failure

Project description:The Set7 methyltransferase regulates the expression of several genes through the methylation of histones and modulates the activity of non-histone proteins. However, the role of Set7 in cardiac remodeling and heart failure remains unknown. To address this question, wild type (WT) and Set7 knockout (KO) male mice were injected with isoproterenol (60 mg/kg) or saline subcutaneously for 14 days. WT mice injected with isoproterenol displayed a decrease in Set7 activity in the heart, although Set7 protein levels were unchanged. WT and Set7 KO mice injected with isoproterenol exhibited an increase in the heart weight and cardiomyocyte area compared to their respective controls. However, Set7 KO mice displayed an exacerbated cardiac hypertrophy in response to isoproterenol compared to WT mice. In addition, Set7 deletion attenuated isoproterenol-induced cardiac fibrosis. Echocardiograms revealed that WT mice injected with isoproterenol had lowered ejection fractions and fractional shortening, and increased E/A ratios compared to their controls. Conversely, Set7 KO mice did not show alteration in these parameters in response to isoproterenol. Both isoproterenol and Set7 deletion changed the transcriptional profile of the heart. Moreover, Set7 deletion increased the expression of mitochondrial biogenesis and antioxidant factors in the heart and reduced the expression of cellular senescence and inflammation markers. Taken together, our data suggest that Set7 deletion reduces isoproterenol-induced myocardial fibrosis and prevents heart failure, suggesting that Set7 plays an important role in cardiac remodeling and function.

2024-04-18 | GSE207581 | GEO

Advanced iPSC-CMs maturation by integrating maturation medium, nanopatterning, and electrical stimulation

Project description:The generation of human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) offers an unlimited source of patient-specific human cardiomyocytes. However, the use of iPSC-CM in vitro-models to guide the clinic selection of particular drugs for individual patients remains a vision. A major limitation represents the immature phenotype of iPSC-CMs, which alters their sensitivity towards physiological and pathophysiological stimuli, cardioactive drugs or toxic substances, in comparison to adult cardiomyocytes (CMs). In this study, we aim to generate iPSC-CMs with an advanced maturation state by combining the use of MM with the alignment of the cells on nanopatterned surfaces (NP) and induction of an increased contractile workload by electrical stimulation (ES). Under the combined influence of MM, NP and ES, iPSC-CMs develop a more complex cellular structure, increased mitochondrial content and enhanced electrophysiological properties. Furthermore, the response of iPSC-CMs matured under influence of MM, NP and ES to isoprenaline as well as verapamil differs to less mature iPSC-CMs cultured in B27-medium. Taken together, our results reveal that the combination of MM, NP and ES strongly improves the maturation state of iPSC-CMs and that this advanced maturation state critically affects the cell behavior in functional studies as well as response to cardioactive drugs.

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